68630544 has 40 divisors (see below), whose sum is σ = 196996320. Its totient is φ = 22876704.

The previous prime is 68630543. The next prime is 68630567. The reversal of 68630544 is 44503686.

68630544 is a `hidden beast` number, since 6 + 86 + 30 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 68630499 and 68630508.

It is not an unprimeable number, because it can be changed into a prime (68630543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79002 + ... + 79865.

It is an arithmetic number, because the mean of its divisors is an integer number (4924908).

Almost surely, 2^68630544 is an apocalyptic number.

It is an amenable number.

68630544 is an abundant number, since it is smaller than the sum of its proper divisors (128365776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68630544 is a wasteful number, since it uses less digits than its factorization.

68630544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158884 (or 158872 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 68630544 is about 8284.3553762499. The cubic root of 68630544 is about 409.4232302518.

The spelling of 68630544 in words is "sixty-eight million, six hundred thirty thousand, five hundred forty-four".